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      <a href="/2016/08/20/react-notes-5-fullfill-index/" title="React使用笔记5--理解jsx以及制作index页面" itemprop="url">React使用笔记5--理解jsx以及制作index页面</a>
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			<strong class="toc-title">文章目录</strong>
		<ol class="toc"><li class="toc-item toc-level-2"><a class="toc-link" href="#理解jsx"><span class="toc-number">1.</span> <span class="toc-text">理解jsx</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#什么是JSX"><span class="toc-number">1.1.</span> <span class="toc-text">什么是JSX</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#使用JSX"><span class="toc-number">1.2.</span> <span class="toc-text">使用JSX</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#JSX与HTML区别"><span class="toc-number">1.3.</span> <span class="toc-text">JSX与HTML区别</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#参考"><span class="toc-number">1.4.</span> <span class="toc-text">参考</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#JSX的if…else…"><span class="toc-number">2.</span> <span class="toc-text">JSX的if…else…</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#使用三元表达式"><span class="toc-number">2.1.</span> <span class="toc-text">使用三元表达式</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#JS代码中使用if表达式"><span class="toc-number">2.2.</span> <span class="toc-text">JS代码中使用if表达式</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#制作index页面"><span class="toc-number">3.</span> <span class="toc-text">制作index页面</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#添加props属性值"><span class="toc-number">3.1.</span> <span class="toc-text">添加props属性值</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#添加state值"><span class="toc-number">3.2.</span> <span class="toc-text">添加state值</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#添加改变状态事件"><span class="toc-number">3.3.</span> <span class="toc-text">添加改变状态事件</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#map遍历数据"><span class="toc-number">3.4.</span> <span class="toc-text">map遍历数据</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#添加点击事件onClick"><span class="toc-number">3.5.</span> <span class="toc-text">添加点击事件onClick</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#组件代码"><span class="toc-number">3.6.</span> <span class="toc-text">组件代码</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#结束语"><span class="toc-number">4.</span> <span class="toc-text">结束语</span></a></li></ol>
		</div>
		
		<p>最近在学习使用React作为前端的框架，《React使用笔记》系列用于记录过程中的一些使用和解决方法。<br>本文简单介绍jsx，以及记录制作首页的过程。<br><a id="more"></a></p>
<h2 id="理解jsx"><a href="#理解jsx" class="headerlink" title="理解jsx"></a>理解jsx</h2><hr>
<h3 id="什么是JSX"><a href="#什么是JSX" class="headerlink" title="什么是JSX"></a>什么是JSX</h3><p>JSX即JavaScript XML，是一个看起来很像XML的JavaScript语法扩展。<br>JSX能定义简洁且我们熟知的包含属性的树状结构语法。</p>
<h3 id="使用JSX"><a href="#使用JSX" class="headerlink" title="使用JSX"></a>使用JSX</h3><p>JSX把类XML的语法转成纯粹JavaScript，XML元素、属性和子节点被转换成React.createElement的参数。</p>
<ul>
<li>JSX标签<br>React的JSX里约定分别使用首字母大、小写来区分本地组件的类和HTML标签。</li>
<li>JavaScript表达式<ul>
<li>表达式用{}包起来，不要加引号，加引号就会被当成字符串。</li>
<li>JSX是HTML和JavaScript混写的语法，当遇到&lt;，JSX就当HTML解析，遇到{就当JavaScript解析。</li>
<li>同样地，JavaScript表达式可用于描述子结点。</li>
</ul>
</li>
</ul>
<h3 id="JSX与HTML区别"><a href="#JSX与HTML区别" class="headerlink" title="JSX与HTML区别"></a>JSX与HTML区别</h3><ul>
<li>HTML实体<br>如果想在JSX表达式中显示HTML实体，可以会遇到二次转义的问题，因为React默认会转义所有字符串，为了防止各种XSS攻击。<ul>
<li>1.安全的做法是先找到实体的Unicode编号 ，然后在JavaScript字符串里使用。</li>
<li>2.可以在数组里混合使用字符串和JSX元素。</li>
<li>3.万不得已，可以直接使用原始HTML。</li>
</ul>
</li>
<li>HTML属性<br>一些标识符像class和for不建议作为XML属性名。作为替代，React DOM使用className和htmlFor来做对应的属性。</li>
<li>内联样式<br>在React中写行内样式时，要使用双大括号，不能采用引号的书写方式</li>
<li>自定义HTML属性<br>如果往原生HTML元素里传入HTML规范里不存在的属性，React不会显示它们。如果需要使用自定义属性，要加data-前缀。</li>
<li>注释<br>JSX里添加注释很容易，它们只是JS表达式而已。你只需要在一个标签的子节点内(非最外层)小心地用单大括号包围要注释的部分。</li>
<li>事件绑定<br>在JSX中事件属性都是以驼峰命名的方式，HTML中的内嵌事件的编写方式在JSX语法中是无效的。</li>
</ul>
<h3 id="参考"><a href="#参考" class="headerlink" title="参考"></a>参考</h3><p><a href="http://reactjs.cn/react/docs/jsx-in-depth.html" target="_blank" rel="external">《深入理解JSX》</a></p>
<h2 id="JSX的if…else…"><a href="#JSX的if…else…" class="headerlink" title="JSX的if…else…"></a>JSX的if…else…</h2><hr>
<p>你没法在JSX中使用if-else语句，因为JSX只是函数调用和对象创建的语法糖。<br>这里我们结合首页来说明一些使用方法吧。</p>
<h3 id="使用三元表达式"><a href="#使用三元表达式" class="headerlink" title="使用三元表达式"></a>使用三元表达式</h3><p>页面中我们使用一个loading的state(状态来表示当前查看的模块)。现在我们结合hidden样式来进行界面的显示控制吧。</p>
<ul>
<li>hidden样式</li>
</ul>
<figure class="highlight css"><table><tr><td class="gutter"><pre><div class="line">1</div></pre></td><td class="code"><pre><div class="line"><span class="selector-class">.hidden</span> &#123; <span class="attribute">display</span>:none; &#125;</div></pre></td></tr></table></figure>
<ul>
<li>显示控制</li>
</ul>
<figure class="highlight"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div></pre></td><td class="code"><pre><div class="line">&lt;div className=&#123;loading == 'sethead' ? '' : 'hidden'&#125;&gt;这里是设置头像页面&lt;/div&gt;</div><div class="line">&lt;div className=&#123;loading == 'setinfo' ? '' : 'hidden'&#125;&gt;这里是修改资料页面&lt;/div&gt;</div><div class="line">&lt;div className=&#123;loading == 'other' ? '' : 'hidden'&#125;&gt;这里是其他页面&lt;/div&gt;</div></pre></td></tr></table></figure>
<h3 id="JS代码中使用if表达式"><a href="#JS代码中使用if表达式" class="headerlink" title="JS代码中使用if表达式"></a>JS代码中使用if表达式</h3><p>当三元操作表达式不够健壮，你也可以使用if语句来决定应该渲染那个组件。<br>这里我们使用两层的map遍历菜单，需要判断是否有子菜单，然后加载。<br><figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div></pre></td><td class="code"><pre><div class="line"><span class="keyword">if</span>(menu.menus)&#123; <span class="comment">//判断是否有子菜单</span></div><div class="line">  menus = menu.menus.map(<span class="function"><span class="keyword">function</span>(<span class="params">item, j</span>)</span>&#123;</div><div class="line">    <span class="keyword">return</span> (<span class="xml"><span class="tag">&lt;<span class="name">ListGroupItem&#125;</span> <span class="attr">key</span>=<span class="string">&#123;j&#125;</span>&gt;</span>&#123; item.text &#125;<span class="tag">&lt;/<span class="name">ListGroupItem</span>&gt;</span></span>);</div><div class="line">  &#125;);</div><div class="line">  menusgroup = (</div><div class="line">    <span class="xml"><span class="tag">&lt;<span class="name">ListGroup</span>&gt;</span></span></div><div class="line">    &#123; menus &#125;</div><div class="line">    <span class="tag">&lt;/<span class="name">ListGroup</span>&gt;</span></div><div class="line">  );  			</div><div class="line">&#125;</div></pre></td></tr></table></figure></p>
<h2 id="制作index页面"><a href="#制作index页面" class="headerlink" title="制作index页面"></a>制作index页面</h2><hr>
<p>页面结构如下：<br><img src="https://github-imglib-1255459943.cos.ap-chengdu.myqcloud.com/F3A2.tmp.png" alt="image"></p>
<h3 id="添加props属性值"><a href="#添加props属性值" class="headerlink" title="添加props属性值"></a>添加props属性值</h3><p>菜单内容等使用pros属性保存（不会发生改变）。<br><figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div></pre></td><td class="code"><pre><div class="line">getDefaultProps : <span class="function"><span class="keyword">function</span> (<span class="params"></span>) </span>&#123;</div><div class="line">  <span class="keyword">var</span> that = <span class="keyword">this</span>;</div><div class="line">  <span class="keyword">return</span> &#123;<span class="comment">//设置默认属性</span></div><div class="line">    asidemenus: [&#123;</div><div class="line">      <span class="attr">title</span>: <span class="string">'基本资料'</span>, <span class="comment">//title用于储存该菜单显示名称</span></div><div class="line">      click: <span class="string">'init'</span>, <span class="comment">//click用于储存该菜单对应点击时loading的状态值</span></div><div class="line">      menus: [&#123;</div><div class="line">        <span class="attr">text</span>: <span class="string">'名字'</span>,</div><div class="line">        <span class="attr">click</span>: <span class="string">'name'</span>,</div><div class="line">      &#125;, &#123;</div><div class="line">        <span class="attr">text</span>: <span class="string">'邮箱'</span>,</div><div class="line">        <span class="attr">click</span>: <span class="string">'email'</span>,</div><div class="line">      &#125;, &#123;</div><div class="line">        <span class="attr">text</span>: <span class="string">'github'</span>,</div><div class="line">        <span class="attr">click</span>: <span class="string">'github'</span>,</div><div class="line">      &#125;, ]</div><div class="line">    &#125;, &#123;</div><div class="line">      <span class="attr">title</span>: <span class="string">'设置头像'</span>,</div><div class="line">      <span class="attr">click</span>: <span class="string">'sethead'</span>,</div><div class="line">    &#125;, &#123;</div><div class="line">      <span class="attr">title</span>: <span class="string">'修改资料'</span>,</div><div class="line">      <span class="attr">click</span>: <span class="string">'setinfo'</span>,</div><div class="line">    &#125;, &#123;</div><div class="line">      <span class="attr">title</span>: <span class="string">'其他'</span>,</div><div class="line">      <span class="attr">click</span>: <span class="string">'other'</span>,</div><div class="line">    &#125;],</div><div class="line">  &#125;;</div><div class="line">&#125;,</div></pre></td></tr></table></figure></p>
<h3 id="添加state值"><a href="#添加state值" class="headerlink" title="添加state值"></a>添加state值</h3><p>loading状态使用state状态保存（会发生改变）。<br><figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div></pre></td><td class="code"><pre><div class="line">getInitialState: <span class="function"><span class="keyword">function</span>(<span class="params"></span>) </span>&#123;</div><div class="line">  <span class="keyword">return</span> &#123;<span class="attr">loading</span>: <span class="string">'init'</span>&#125;;</div><div class="line">&#125;,</div></pre></td></tr></table></figure></p>
<h3 id="添加改变状态事件"><a href="#添加改变状态事件" class="headerlink" title="添加改变状态事件"></a>添加改变状态事件</h3><p>创建事件用来改变loading状态。<br><figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div></pre></td><td class="code"><pre><div class="line">changeState: <span class="function"><span class="keyword">function</span>(<span class="params">state</span>)</span>&#123;</div><div class="line">  <span class="keyword">this</span>.setState(&#123;<span class="attr">loading</span>: state&#125;);</div><div class="line">&#125;,</div></pre></td></tr></table></figure></p>
<h3 id="map遍历数据"><a href="#map遍历数据" class="headerlink" title="map遍历数据"></a>map遍历数据</h3><p>上面也有提到map的使用。<br>在这里有个需要注意的地方就是，遍历的时候需要给元素设置key，下面介绍一下key。</p>
<ul>
<li>key<br>给组件设置独一无二的键，并确保它在一个渲染周期中保持一致，是的React能够更智能地决定应该重用一个组件，还是销毁并重新创建一个组件，进而提升渲染性能。<figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div></pre></td><td class="code"><pre><div class="line">menus = menu.menus.map(<span class="function"><span class="keyword">function</span>(<span class="params">item, j</span>)</span>&#123;</div><div class="line">  <span class="keyword">return</span> (<span class="xml"><span class="tag">&lt;<span class="name">ListGroupItem&#125;</span> <span class="attr">key</span>=<span class="string">&#123;j&#125;</span>&gt;</span>&#123; item.text &#125;<span class="tag">&lt;/<span class="name">ListGroupItem</span>&gt;</span></span>);</div><div class="line">&#125;);</div></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="添加点击事件onClick"><a href="#添加点击事件onClick" class="headerlink" title="添加点击事件onClick"></a>添加点击事件onClick</h3><ul>
<li>事件处理<br>React里只需把事件处理器（event handler）以骆峰命名（camelCased）形式当作组件的props传入即可，就像使用普通HTML那样。</li>
<li>自动绑定<br>React中，所有方法被自动绑定到了它的组件实例上。React还缓存这些绑定方法，所以CPU和内存都是非常高效。</li>
<li>事件代理<ul>
<li>React实际并没有把事件处理器绑定到节点本身。</li>
<li>当React启动的时候，它在最外层使用唯一一个事件监听器处理所有事件。</li>
<li>当组件被加载和卸载时，只是在内部映射里添加或删除事件处理器。</li>
<li>当事件触发，React根据映射来决定如何分发。当映射里处理器时，会当作空操作处理。</li>
</ul>
</li>
<li>虚拟事件对象<ul>
<li>事件处理器将会传入虚拟事件对象的实例，一个对浏览器本地事件的跨浏览器封装。</li>
<li>它有和浏览器本地事件相同的属性和方法，包括 stopPropagation()和preventDefault()，但是没有浏览器兼容问题。</li>
<li>要在捕获阶段触发某个事件处理器，在事件名字后面追加Capture字符串</li>
</ul>
</li>
</ul>
<p>介绍完了React的事件处理相关，我们这里提一个在map里面使用事件绑定需要注意的地方。<br>当使用map遍历时，map函数里面的this对象不再指向该组件，此时我们只需要在函数后面添加.bind(this)就好。</p>
<p>需要传递参数时，可以在事件的后面使用bind进行传参，然后直接在事件函数中获取就好啦。</p>
<ul>
<li>bind<ul>
<li>bind与call很相似，例如，可接受的参数都分为两部分，且第一个参数都是作为执行时函数上下文中的this的对象。</li>
<li>不同点有两个：</li>
<li>1.bind的返回值是函数。</li>
<li>2.call是把第二个及以后的参数作为函数方法的实参传进去，而bind虽说也是获取第二个及以后的参数用于之后方法的执行，但是返回的函数中传入的实参则是在bind中传入参数的基础上往后排的。</li>
</ul>
</li>
</ul>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div></pre></td><td class="code"><pre><div class="line">menus = menu.menus.map(<span class="function"><span class="keyword">function</span>(<span class="params">item, j</span>)</span>&#123;</div><div class="line">  <span class="keyword">return</span> (<span class="xml"><span class="tag">&lt;<span class="name">ListGroupItem&#125;</span> <span class="attr">key</span>=<span class="string">&#123;j&#125;</span> <span class="attr">onClick</span>=<span class="string">&#123;this.changeState.bind(null,item.click)</span>&gt;</span>&#123; item.text &#125;<span class="tag">&lt;/<span class="name">ListGroupItem</span>&gt;</span></span>);</div><div class="line">&#125;.bind(<span class="keyword">this</span>));</div></pre></td></tr></table></figure>
<h3 id="组件代码"><a href="#组件代码" class="headerlink" title="组件代码"></a>组件代码</h3><p>这里贴一下我们组件的代码，有点长哦。<br><figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div><div class="line">50</div><div class="line">51</div><div class="line">52</div><div class="line">53</div><div class="line">54</div><div class="line">55</div><div class="line">56</div><div class="line">57</div><div class="line">58</div><div class="line">59</div><div class="line">60</div><div class="line">61</div><div class="line">62</div><div class="line">63</div><div class="line">64</div><div class="line">65</div><div class="line">66</div><div class="line">67</div><div class="line">68</div><div class="line">69</div><div class="line">70</div><div class="line">71</div></pre></td><td class="code"><pre><div class="line"><span class="keyword">import</span> React <span class="keyword">from</span> <span class="string">'react'</span>;</div><div class="line"><span class="keyword">import</span> &#123; Panel, PanelGroup, ListGroup, ListGroupItem &#125; <span class="keyword">from</span> <span class="string">'react-bootstrap'</span>;</div><div class="line"><span class="keyword">import</span> Header <span class="keyword">from</span>  <span class="string">'./header.jsx'</span>; <span class="comment">//login自定义组件</span></div><div class="line"></div><div class="line"><span class="keyword">const</span> Index = React.createClass(&#123;</div><div class="line">  <span class="attr">getDefaultProps</span> : <span class="function"><span class="keyword">function</span> (<span class="params"></span>) </span>&#123;</div><div class="line">     <span class="keyword">return</span> &#123;<span class="comment">//设置默认属性</span></div><div class="line">      asidemenus: <span class="string">''</span>, <span class="comment">//这里就省略啦，大家可以看前面的菜单数据</span></div><div class="line">    &#125;;</div><div class="line">  &#125;,</div><div class="line">  <span class="attr">changeState</span>: <span class="function"><span class="keyword">function</span>(<span class="params">state</span>)</span>&#123;</div><div class="line">    <span class="keyword">this</span>.setState(&#123;<span class="attr">loading</span>: state&#125;);</div><div class="line">  &#125;,</div><div class="line">  <span class="attr">getInitialState</span>: <span class="function"><span class="keyword">function</span>(<span class="params"></span>) </span>&#123;</div><div class="line">    <span class="keyword">return</span> &#123;<span class="attr">loading</span>: <span class="string">'init'</span>&#125;;</div><div class="line">  &#125;,</div><div class="line">  render() &#123;</div><div class="line">  	<span class="keyword">var</span> loading = <span class="keyword">this</span>.state.loading;</div><div class="line">  	<span class="keyword">var</span> that = <span class="keyword">this</span>;</div><div class="line">  	<span class="keyword">var</span> changeState = <span class="keyword">this</span>.changeState;</div><div class="line">  	<span class="keyword">var</span> asidemenus = <span class="keyword">this</span>.props.asidemenus.map(<span class="function"><span class="keyword">function</span>(<span class="params">menu, i</span>)</span>&#123;</div><div class="line">  		<span class="keyword">var</span> menus, menusgroup; 		</div><div class="line">  		<span class="keyword">if</span>(menu.menus)&#123;</div><div class="line">  			menus = menu.menus.map(<span class="function"><span class="keyword">function</span>(<span class="params">item, j</span>)</span>&#123;</div><div class="line">  				<span class="keyword">return</span> (<span class="xml"><span class="tag">&lt;<span class="name">ListGroupItem</span> <span class="attr">onClick</span>=<span class="string">&#123;this.changeState.bind(null,item.click)&#125;</span> <span class="attr">key</span>=<span class="string">&#123;j&#125;</span>&gt;</span>&#123; item.text &#125;<span class="tag">&lt;/<span class="name">ListGroupItem</span>&gt;</span></span>);</div><div class="line">  			&#125;.bind(<span class="keyword">this</span>));</div><div class="line">  			menusgroup = (</div><div class="line">  				<span class="xml"><span class="tag">&lt;<span class="name">ListGroup</span>&gt;</span></span></div><div class="line">  					&#123; menus &#125;</div><div class="line">  				<span class="tag">&lt;/<span class="name">ListGroup</span>&gt;</span></div><div class="line">  			);  			</div><div class="line">  		&#125;</div><div class="line">  		<span class="keyword">var</span> menuheader = (</div><div class="line">  			<span class="xml"><span class="tag">&lt;<span class="name">ul</span> <span class="attr">class</span>=<span class="string">"panel-title "</span>&gt;</span></span></div><div class="line">        <span class="tag">&lt;<span class="name">li</span> <span class="attr">onClick</span>=<span class="string">&#123;this.changeState.bind(null,menu.click)&#125;</span>&gt;</span></div><div class="line">            &#123; menu.title &#125;</div><div class="line">        <span class="tag">&lt;/<span class="name">li</span>&gt;</span></div><div class="line">      <span class="tag">&lt;/<span class="name">ul</span>&gt;</span></div><div class="line">  		);</div><div class="line">  		<span class="keyword">return</span> (</div><div class="line">  			<span class="xml"><span class="tag">&lt;<span class="name">Panel</span> <span class="attr">collapsible</span> <span class="attr">defaultExpanded</span> <span class="attr">className</span>=<span class="string">"list-group"</span> <span class="attr">key</span>=<span class="string">&#123;i&#125;</span> <span class="attr">header</span>=<span class="string">&#123;menuheader&#125;</span>&gt;</span></span></div><div class="line">        <span class="tag">&lt;<span class="name">div</span> <span class="attr">id</span>=<span class="string">"collapse&#123;i&#125;"</span> <span class="attr">className</span>=<span class="string">"panel-collapse collapse in"</span>&gt;</span></div><div class="line">          &#123; menusgroup &#125;										</div><div class="line">        <span class="tag">&lt;/<span class="name">div</span>&gt;</span></div><div class="line">      <span class="tag">&lt;/<span class="name">Panel</span>&gt;</span></div><div class="line">  		);</div><div class="line">  	&#125;.bind(<span class="keyword">this</span>));</div><div class="line">    <span class="keyword">return</span> (</div><div class="line">    	<span class="xml"><span class="tag">&lt;<span class="name">div</span> <span class="attr">className</span>=<span class="string">"container-fluid row"</span>&gt;</span></span></div><div class="line">    		<span class="tag">&lt;<span class="name">Header</span> <span class="attr">active</span>=<span class="string">"index"</span>&gt;</span><span class="tag">&lt;/<span class="name">Header</span>&gt;</span></div><div class="line">        <span class="tag">&lt;<span class="name">aside</span> <span class="attr">className</span>=<span class="string">"col-md-2 col-md-offset-1"</span>&gt;</span></div><div class="line">          <span class="tag">&lt;<span class="name">PanelGroup</span> <span class="attr">id</span>=<span class="string">"accordion"</span>&gt;</span></div><div class="line">            &#123;	asidemenus &#125;						</div><div class="line">          <span class="tag">&lt;/<span class="name">PanelGroup</span>&gt;</span></div><div class="line">        <span class="tag">&lt;/<span class="name">aside</span>&gt;</span></div><div class="line">        <span class="tag">&lt;<span class="name">article</span> <span class="attr">className</span>=<span class="string">"col-md-7"</span>&gt;</span></div><div class="line">          <span class="tag">&lt;<span class="name">section</span> <span class="attr">className</span>=<span class="string">"index-content"</span>&gt;</span></div><div class="line">            <span class="tag">&lt;<span class="name">p</span> <span class="attr">className</span>=<span class="string">&#123;loading</span> == <span class="string">'init'</span> || <span class="attr">loading</span> == <span class="string">'name'</span> ? '' <span class="attr">:</span> '<span class="attr">hidden</span>'&#125;&gt;</span>昵称：被删<span class="tag">&lt;/<span class="name">p</span>&gt;</span></div><div class="line">            <span class="tag">&lt;<span class="name">p</span> <span class="attr">className</span>=<span class="string">&#123;loading</span> == <span class="string">'init'</span> || <span class="attr">loading</span> == <span class="string">'email'</span> ? '' <span class="attr">:</span> '<span class="attr">hidden</span>'&#125;&gt;</span>邮箱：wangbeishan@163.com<span class="tag">&lt;/<span class="name">p</span>&gt;</span></div><div class="line">            <span class="tag">&lt;<span class="name">p</span> <span class="attr">className</span>=<span class="string">&#123;loading</span> == <span class="string">'init'</span> || <span class="attr">loading</span> == <span class="string">'github'</span> ? '' <span class="attr">:</span> '<span class="attr">hidden</span>'&#125;&gt;</span>github: <span class="tag">&lt;<span class="name">a</span> <span class="attr">href</span>=<span class="string">"https://github.com/godbasin"</span>&gt;</span>github.com/godbasin<span class="tag">&lt;/<span class="name">a</span>&gt;</span><span class="tag">&lt;/<span class="name">p</span>&gt;</span></div><div class="line">            <span class="tag">&lt;<span class="name">div</span> <span class="attr">className</span>=<span class="string">&#123;loading</span> == <span class="string">'sethead'</span> ? '' <span class="attr">:</span> '<span class="attr">hidden</span>'&#125;&gt;</span>这里是设置头像页面<span class="tag">&lt;/<span class="name">div</span>&gt;</span></div><div class="line">            <span class="tag">&lt;<span class="name">div</span> <span class="attr">className</span>=<span class="string">&#123;loading</span> == <span class="string">'setinfo'</span> ? '' <span class="attr">:</span> '<span class="attr">hidden</span>'&#125;&gt;</span>这里是修改资料页面<span class="tag">&lt;/<span class="name">div</span>&gt;</span></div><div class="line">            <span class="tag">&lt;<span class="name">div</span> <span class="attr">className</span>=<span class="string">&#123;loading</span> == <span class="string">'other'</span> ? '' <span class="attr">:</span> '<span class="attr">hidden</span>'&#125;&gt;</span>这里是其他页面<span class="tag">&lt;/<span class="name">div</span>&gt;</span></div><div class="line">          <span class="tag">&lt;/<span class="name">section</span>&gt;</span></div><div class="line">        <span class="tag">&lt;/<span class="name">article</span>&gt;</span></div><div class="line">      <span class="tag">&lt;/<span class="name">div</span>&gt;</span></div><div class="line">    );</div><div class="line">  &#125;</div><div class="line">&#125;);</div><div class="line"></div><div class="line"><span class="built_in">module</span>.exports = Index;</div></pre></td></tr></table></figure></p>
<h2 id="结束语"><a href="#结束语" class="headerlink" title="结束语"></a>结束语</h2><hr>
<p>其实从AngularJS转React的时候，有很多模板引擎的使用方式不一致了，还是很不习惯的呢。相对Angular来说，React似乎教程更少呢，所以本骚年有些时候遇到bug也不是很懂，大家一起来探寻吧。<br><a href="https://github.com/godbasin/godbasin.github.io/tree/blog-codes/react-notes/5-fullfill-index" target="_blank" rel="external">此处查看项目代码（仅包含app部分）</a><br><a href="http://react-notes.godbasin.com/5-fullfill-index/index.html?#/index" target="_blank" rel="external">此处查看页面效果</a></p>
  
		
		<p style="margin-top:50px;">查看Github有更多内容噢：<a href="https://github.com/godbasin">https://github.com/godbasin</a></p>
	</div>
	<img src="https://github-imglib-1255459943.cos.ap-chengdu.myqcloud.com/2code2.jpg" width="200" height="200" style="display:block;margin: 0 auto;" />
	<p style="text-align: center;margin-top: 10px;margin-bottom: 20px;">码生艰难，写文不易，给我家猪囤点猫粮了喵~</p>
	<div class="author-right">
  		<p>作者：被删</p>
  		<p>出处：<a href="https://godbasin.github.io">https://godbasin.github.io</a></p>
  		<p>本文版权归作者所有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。</p>
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  <strong class="toc-title">文章目录</strong>
  <ol class="toc"><li class="toc-item toc-level-2"><a class="toc-link" href="#理解jsx"><span class="toc-number">1.</span> <span class="toc-text">理解jsx</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#什么是JSX"><span class="toc-number">1.1.</span> <span class="toc-text">什么是JSX</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#使用JSX"><span class="toc-number">1.2.</span> <span class="toc-text">使用JSX</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#JSX与HTML区别"><span class="toc-number">1.3.</span> <span class="toc-text">JSX与HTML区别</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#参考"><span class="toc-number">1.4.</span> <span class="toc-text">参考</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#JSX的if…else…"><span class="toc-number">2.</span> <span class="toc-text">JSX的if…else…</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#使用三元表达式"><span class="toc-number">2.1.</span> <span class="toc-text">使用三元表达式</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#JS代码中使用if表达式"><span class="toc-number">2.2.</span> <span class="toc-text">JS代码中使用if表达式</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#制作index页面"><span class="toc-number">3.</span> <span class="toc-text">制作index页面</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#添加props属性值"><span class="toc-number">3.1.</span> <span class="toc-text">添加props属性值</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#添加state值"><span class="toc-number">3.2.</span> <span class="toc-text">添加state值</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#添加改变状态事件"><span class="toc-number">3.3.</span> <span class="toc-text">添加改变状态事件</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#map遍历数据"><span class="toc-number">3.4.</span> <span class="toc-text">map遍历数据</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#添加点击事件onClick"><span class="toc-number">3.5.</span> <span class="toc-text">添加点击事件onClick</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#组件代码"><span class="toc-number">3.6.</span> <span class="toc-text">组件代码</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#结束语"><span class="toc-number">4.</span> <span class="toc-text">结束语</span></a></li></ol>
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